If absolutely nothing works—not even recovery mode—the player is in a "Deep Sleep." There is one final hardware-level reset.
The is a beloved relic from the late 2000s—a sleek, USB-stick style MP3 player with a 1-inch OLED screen, FM radio, and the innovative "DNSe 3.0" sound engine. For many, it was the perfect gym companion or commute buddy. samsung yp-u5 not working